VOLCANO CORPORATION

CUSIP: 928645AA8 Class: CNV

WELLINGTON MANAGEMENT GROUP LLP's Holding History (CIK: 0000902219)

Note: Option positions (PUT/CALL) are excluded.

Q3 2014
Shares 634,000 Value ($000) $630 Avg Close — Range —
Q2 2014
Shares 634,000 Value ($000) $638 Avg Close — Range —
Q1 2014
Shares 634,000 Value ($000) $640 Avg Close — Range —
Q4 2013
Shares 634,000 Value ($000) $666 Avg Close — Range —
Q3 2013
Shares 634,000 Value ($000) $685 Avg Close — Range —
Q2 2013
Shares 634,000 Value ($000) $628 Avg Close — Range —